I am in the GBB world for a year now, I started with a KSC M4A1. In the last year I acquired pretty deep knowledge of that platform and with the release of the LM4 I was eager to know what the differences are between the two models.
Finally (and unfortunately from a personal point of view)* I got an LM4 and could compare it to the asian model, as many ouf you call it.
Pictures are going to be posted later. I have not taken any yet.
*(My upper is damaged, need to replace it. Downside of buying a used gun...)
Not compatible parts:
Receiver - LM4 has got a shorter one (or KSC got a longer one), and that means:
Bolt carrier - is also shorter. That is sad because I can not upgrade it to the lightweight bolt carrier which works great in KSC guns.
Need to verify:
Stock tube is shorter on the LM4, diameter is the same. I need to check if it can be installed onto a KSC receiver or not.
Internal parts look totally the same as KSC ones. Will check it for sure.
Barrel and hopup design is the same. Which means you are good with any KSC compatible outer barrel. (Dytac, Guarder or KSC).
I am going to continue the comparison and take pictures and post them here, too.
Feel free to ask!
Edited by emp3ror86, 27 October 2012 - 03:53 AM.